In this investigation, biological management was examined to control Colletotrichum capsici caused anthracnose in chilli plants. Fungal antagonist Trichoderma spp. and local plant extracts were tested singly against the pathogen. In laboratory studies, it has been depicted that Eucalyptus plant extracts (at 20%W/V) and Trichoderma viride inhibited the mycelium growth of Pathogen to the magnitude of (81.11%) and (90.74%), respectively. Further studies in pot and field conditions revealed that Trichoderma viride was observed to be superior in controlling the incidence of chilli anthracnose disease (69.63% & 63.43%) in highly susceptible cultivar. Five Trichoderma species were also screened to check the chitinolytic enzyme. Out of these species, T. viride exhibited the highest chitin degrading activity which leads to maximum inhibition of the mycelial growth of the test pathogen. The findings indicated that leaf extracts of plants significantly reduced the pathogen growth in laboratory conditions only, whereas Trichoderma species were found superior in laboratory, pot and field conditions. Therefore, these findings undoubtedly supported the usefulness of antipathogenic Trichoderma in limiting the occurrence of anthracnose in chilli.